I’d argue that a reasonable person would understand these terms to confer an unrestricted ownership interest.
I’m putting this good into a metaphorical container and taking it to a metaphorical till. This implies a sort of tangibility, a property of physical goods that I’d walk out of the metaphorical store to own.
That’s a good point. The real world experience they’re analogizing is me putting a bottle of ketchup in a shopping cart at a grocery store and checking out at the cashier. Afterward, I own that bottle of ketchup, not a license to ketchup, but that instance of it. “Shopping cart” and “checkout” imply “buying”, and I can’t think of a counterexample.
I’m putting this good into a metaphorical container and taking it to a metaphorical till. This implies a sort of tangibility, a property of physical goods that I’d walk out of the metaphorical store to own.